[PATCH v8 03/24] scripts/jobserver-exec: add a help message

Mauro Carvalho Chehab
2025-09-18T11:55:05Z

Currently, calling it without an argument shows an ugly error
message. Instead, print a message using pythondoc as description.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
scripts/jobserver-exec | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/scripts/jobserver-exec b/scripts/jobserver-exec
index 40a0f0058733..ae23afd344ec 100755
--- a/scripts/jobserver-exec
+++ b/scripts/jobserver-exec
@@ -1,6 +1,15 @@
#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0+

+"""
+Determines how many parallel tasks "make" is expecting, as it is
+not exposed via any special variables, reserves them all, runs a subprocess
+with PARALLELISM environment variable set, and releases the jobs back again.
+
+See:
+ https://www.gnu.org/software/make/manual/html_node/POSIX-Jobserver.html#POSIX-Jobserver
+"""
+
import os
import sys

@@ -12,17 +21,12 @@ sys.path.insert(0, os.path.join(SRC_DIR, LIB_DIR))
from jobserver import JobserverExec # pylint: disable=C0415

-"""
-Determines how many parallel tasks "make" is expecting, as it is
-not exposed via an special variables, reserves them all, runs a subprocess
-with PARALLELISM environment variable set, and releases the jobs back again.
-
-See:
- https://www.gnu.org/software/make/manual/html_node/POSIX-Jobserver.html#POSIX-Jobserver
-"""
-
def main():
"""Main program"""
+ if len(sys.argv) < 2:
+ name = os.path.basename(__file__)
+ sys.exit("usage: " + name +" command [args ...]\n" + __doc__)
+
with JobserverExec() as jobserver:
jobserver.run(sys.argv[1:])

--
2.51.0